Phytosanitary Legislation is a module designed to introduce students to the legal and regulatory framework governing plant health and the use of phytosanitary products. It explains the laws, regulations, standards, and official procedures established to prevent and control risks associated with pests, diseases, weeds, and plant protection products. The module covers the main principles of phytosanitary regulation, including the production, formulation, registration, homologation, distribution, import, export, marketing, and use of plant protection products. It also introduces students to the role of competent authorities and the importance of official controls in ensuring the safe and effective use of these products.